UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100712.upa.cvt Date: 1200Z 7 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 7 OCT 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- SFC 1013 112 -6.5 -10.6 73 4.1 -7.6 340 5 265.7 265.9 264.8 270.2 1.68 1 1000 213 -8.3 -13.3 67 5.0 -9.5 340 7 264.9 265.1 263.6 268.6 1.37 2 962 512 -11.5 -15.5 72 4.0 -12.4 342 10 264.6 264.8 263.1 267.8 1.19 3 925 811 -13.7 -16.3 81 2.6 -14.2 345 13 265.3 265.5 263.6 268.5 1.16 4 895 1061 -15.7 -18.0 82 2.3 -16.2 343 14 265.7 265.9 263.7 268.6 1.03 5 889 1112 -15.7 -18.0 82 2.3 -16.2 343 14 266.3 266.4 264.0 269.2 1.04 6 884 1155 -13.9 -16.2 83 2.3 -14.4 342 14 268.6 268.8 266.0 272.0 1.22 7 883 1163 -13.5 -15.8 83 2.3 -14.0 342 14 269.1 269.3 266.4 272.6 1.26 8 850 1454 -12.1 -19.1 56 7.0 -13.6 340 15 273.5 273.6 268.9 276.3 0.99 9 846 1490 -11.9 -19.9 51 8.0 -13.6 340 15 274.0 274.2 269.1 276.7 0.93 10 830 1636 -11.9 -21.9 43 10.0 -13.9 341 15 275.5 275.7 269.8 277.9 0.80 11 777 2140 -12.7 -28.7 25 16.0 -15.3 342 14 279.9 280.0 271.9 281.4 0.46 12 709 2832 -17.3 -32.3 26 15.0 -19.4 345 13 282.3 282.4 273.1 283.4 0.36 13 700 2928 -17.5 -32.5 26 15.0 -19.6 345 13 283.1 283.2 273.6 284.2 0.36 14 672 3232 -18.3 -33.3 26 15.0 -20.3 347 13 285.5 285.6 274.9 286.6 0.34 15 671 3243 -18.5 -33.5 26 15.0 -20.5 348 13 285.4 285.5 274.8 286.5 0.34 16 510 5222 -34.1 -38.0 68 3.9 -34.4 4 15 289.8 289.9 277.0 290.7 0.28 17 503 5318 -34.7 -38.5 68 3.8 -35.0 5 15 290.2 290.3 277.2 291.1 0.27 18 500 5360 -34.7 -38.5 68 3.8 -35.0 5 15 290.7 290.8 277.4 291.6 0.27 19 438 6276 -39.9 -43.2 71 3.3 -40.1 32 11 295.4 295.4 279.6 296.0 0.19 20 400 6890 -45.1 -48.5 69 3.4 -45.2 50 9 296.4 296.4 279.9 296.8 0.12 21 300 8760 -57.7 -61.1 65 3.4 -57.8 90 23 304.0 304.0 283.1 304.1 0.03 22 292 8929 -59.3 -62.9 63 3.6 -59.3 89 24 304.1 304.1 283.1 304.2 0.03 23 267 9484 -62.1 -65.4 64 3.3 -62.1 85 27 307.9 307.9 284.5 308.0 0.02 24 257 9719 -62.1 -65.5 64 3.4 -62.1 88 24 311.3 311.3 285.8 311.4 0.02 25 250 9890 -60.9 -64.4 63 3.5 -60.9 90 21 315.5 315.5 287.3 315.6 0.03 26 227 10493 -59.3 -63.1 61 3.8 -59.3 73 15 326.8 326.8 290.9 326.9 0.03 27 214 10866 -54.9 -58.7 63 3.8 -55.0 62 11 339.2 339.2 294.2 339.5 0.06 28 200 11300 -54.3 -58.2 62 3.9 -54.4 50 7 346.8 346.8 296.0 347.1 0.07 29 172 12271 -52.3 -57.0 57 4.7 -52.5 365.4 365.4 299.8 365.8 0.10 TRP 267 9484 -62.1 -65.4 64 3.3 -62.1 85 27 307.9 307.9 284.5 308.0 0.02 WND Sounding variables and indices 1000-500 mb thick: 5147.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 48.62 % Est. max temperature: -0.44 C = 31.21 F Sfc-Lift cond lev (LCL): 949.08 mb = 614.90 m = 2017.36 ft T: -12.26 C 700-500 lapse rate: 7.07 C/km ThetaE index: 2.40 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 660.94 mb = 3352.34 m = 10998.35 ft Mean mixing ratio: 1.25 g/kg Conv temperature: 13.61 C = 56.50 F Cap Strength: 18.13 C Lifted Index: 18.48 C Risk: None Lifted Index @300 mb: 25.25 C Lifted Index @700 mb: 14.30 C Showalter Index: 12.10 C Risk: None Total Totals Index: 38.20 C Risk: None Vertical Totals Index: 22.60 C Cross Totals Index: 15.60 C K Index: -11.50 Risk: None Sweat Index: 45.00 Risk: None Energy Index: 3.26 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.82 J/kg Max Up Vert Vel: 2.37 m/s Conv Inhibition (B-): 11667.40 J/kg Cap Strength: 18.03 C Lift Cond Lev (LCL): 905.23 mb = 974.83 m = 3198.21 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 22 at 10 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 1013 112 340 5 1.7 -4.7 | 230 7 5.5 4.6 1 1000 213 340 7 2.4 -6.6 | 246 7 6.2 2.7 2 925 811 345 13 3.4 -12.6 | 294 8 7.2 -3.2 3 850 1454 340 15 5.1 -14.1 | 298 10 8.9 -4.8 4 700 2928 345 13 3.4 -12.6 | 294 8 7.2 -3.2 5 500 5360 5 15 -1.3 -14.9 | 336 6 2.5 -5.6 6 400 6890 50 9 -6.9 -5.8 | 139 5 -3.1 3.5 7 300 8760 90 23 -23.0 0.0 | 116 21 -19.2 9.3 8 267 9484 85 27 -26.9 -2.4 | 107 24 -23.1 7.0 9 250 9890 90 21 -21.0 0.0 | 118 20 -17.2 9.3 10 200 11300 50 7 -5.4 -4.5 | 162 5 -1.6 4.8 Wind Parameters Mean winds (0-6000m): 352.2 at 13.4 knts Storm direction: 22.2 at 10.1 knts Shear (0-3000m) pos: 0.8 neg: 0.7 tot: 1.5 10-3/s Storm rel Dir Shear (0-3000m): 66.7 deg Storm rel helicity (0-3000m) pos: 16.4 neg: -1.3 tot: 15.1 m^2/s^2 ave: 5.0 10^-3 m/s^2 rel: 0.63 Storm rel vorticity (0-3000m) horiz: 2.2 stream: 1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.73 Bulk Shear: 3.84 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 342 8 258 7| 6.2 0.0 6.2| 10.7 0.0 10.7 21.5 0.99| 6.2 6.1 1000 343 11 277 7| 3.1 1.5 4.6| 15.1 0.0 15.1 15.1 0.89| 4.7 4.2 1500 342 12 286 8| 2.1 1.3 3.4| 15.7 -0.1 15.6 10.4 0.80| 3.6 2.9 2000 342 13 289 8| 1.4 1.0 2.4| 15.7 -0.5 15.2 7.6 0.73| 2.9 2.1 2500 342 13 290 8| 1.0 0.8 1.8| 15.7 -1.0 14.7 5.9 0.66| 2.5 1.6 3000 343 13 291 8| 0.8 0.7 1.5| 16.4 -1.3 15.1 5.0 0.63| 2.2 1.4 4000 345 13 294 8| 0.8 0.5 1.3| 20.1 -1.3 18.8 4.7 0.67| 1.9 1.3 5000 348 13 300 8| 0.8 0.4 1.2| 23.8 -1.3 22.5 4.5 0.71| 1.8 1.3 6000 352 13 305 7| 0.8 0.3 1.1| 28.9 -1.3 27.6 4.6 0.72| 2.0 1.5 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251007.12.gif